161777185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 214298784

約数和(自身を除く): 52521599

約数列:

[1, 5, 17, 41, 61, 85, 205, 305, 697, 761, 1037, 2501, 3485, 3805, 5185, 12505, 12937, 31201, 42517, 46421, 64685, 156005, 212585, 232105, 530417, 789157, 1903261, 2652085, 3945785, 9516305, 32355437, 161777185]

約数ペア:

[(1, 161777185), (5, 32355437), (17, 9516305), (41, 3945785), (61, 2652085), (85, 1903261), (205, 789157), (305, 530417), (697, 232105), (761, 212585), (1037, 156005), (2501, 64685), (3485, 46421), (3805, 42517), (5185, 31201), (12505, 12937)]